Sole-rounding machine



(No Model.) 3 Sheets-Sheet 1.

J. N. MOULTON;

SOLE ROUNDING MACHINE.

No. 522,166. Patented June 26, 1894.

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(No Model.) 3 Sheets-Sheet 2.

.J. N. MOULTON.

SOLE ROUNDING MACHINE.

No. 522,166. Patented June 26', 1894.

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(No Model.)

J. N. MOULTON. sou: ROUNDING MACHINE.

No. 522,166, Patented J1me 26, 1894.

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UNITED STATES PATENT NOFFICE.

JAMES N. MOULTON,-OF HAVERHILL, ASSIGNOR TO THE STANLEY MANU- FACTURINGCOMPANY, OF BOSTON, MASSACHUSETTS.

SOLE-ROU NDING MACHINE.

SPECIFICATION forming part of Iietters Patent No. 522,166, dated June26, 1894.

Application fil September 25.1893. Serial No. 436,366. (No model.)

To all whom it may concern.-

Be it known that I, JAMES N. MOULTON, of

Haverhill, county of Essex, State of Massachu'setts, have invented anImprovement in Sole-Rounding Machines, of which the followingdescription, in connection with the accompanying drawings, is aspecification, like let ters and figures on the drawings representinglike parts. This invention has for its object the production of a novelmachine for rounding or shaping soles, my said machine being adapted toshape the sole from a block of leather, and

with but slight adjustments, from a strip of leather.

In my improved machine the material for the sole is held between aclamping plate and a pattern plate, and a knife pivoted upon a knifeplate adapted to slide horizontally in guide-ways of a carriage pivotedon a shoe fitted to slide in guide-ways of an arm, is made to travelabout said pattern plate and cut the leather thereon into sole-shape asthe said arm is revolved about the pattern plate. Thecarriage referredto has two roller or other studs which enter a cam shaped groove in astationary cam-plate located below the pattern-plate on which theleather rests, and the pivot of the said carriage is located at adistance back of a line intersecting the centers of said rolls, suchlocation of the pivot of the carriage enabling it to be moved steadilyand uniformly at all points of its travel about the pattern plate.

In my machine the knife-bar may have a long range of movement toward andfrom the center of the pattern plate, which is stationary, and=the knifebar is acted upon by a spring-controlled lever, and a suitableconnection between it and'the knife bar, whereby the knife bar, as ittravels about the stationary pattern plate, may adapt itself to whateversize or shape of plate is used, the cam plate serving for diflerentsizes and shapes of soles without any change or adjustment ofitsposition. 7 I

One part of my invention consists essentially' in a sole roundingmachine containing I the following instrumentalities, viz:-a sta-.tionary pattern plate upon which the leather to be cut is held fixedly;a stationary cam plate having a cam groove; arotatable arm as (1 havinga guideway; abar adapted to slide therein longitudinally; a carriagepivoted to said bar and provided with roller or other studs to enter thegroove of the said cam plate; a knife-bar fitted to slide in guidewaysconnected with said carriage; a knife-holder carried by said knife-bar;means to keep the said knife-holder pressed up to the said pattern plateand yet adapt it to follow the contour of the pattern plate of whateverform; and means to rotate said arm and move said carriage with the saidknife about the pattern plate, substantially as will be described.

Other features of myinvention will be hereinafter described andparticularly pointed out in the claims.

Figure 1, in side elevation shows one form of my improved sole roundingmachine adapted V to shape soles from blocks of leather; Fig.

1, an enlarged section of block h. Fig. 2 is a partial front view of themachine shown in Fig. 1. Fig. 2 is a detail of the lower end of thelocking device detached from Fig. 2, together with a small part of thepresser-plate. Fig. 3 is a plan view looking down below the line 00,Fig. 2, the pattern plate, and the pattern plate rest, being partiallybroken out to show the bolt below them 5 Fig. 3 a detail of the knifeand knife holder. Fig. 4 isan under side view of the parts shown in Fig.3. Fig. 5 is a detail, looking from the under side of the machine, ofsome of the devices for pulling the knife-bar back from the patternplate when the latter is to be changed for another of a difiereut shape.Fig. 6 is a detail looking down below the line 00 Fig. 1, on' thelocking mechanism to be described, the said figure, however, showing theparts in a position different from the position Fig.1; Fig. 7.

a presser rod 13 provided at its lower end with a yoke shaped pressercarrier B pivoted thereto at B said carrier having detachably connectedwith it a presser plate E the plate being locked to the carrier by meansof a suitable locking device 13, herein shown as a spring, which entersa hole in said plate, the.

said locking device, see Fig. 2", having near its free end a notch toengage a portion of 7 said presser-plate, the said locking deviceproviding for the ready removal of one presser plate of one size orshape, and the substitution of another presser plate of a diiferent sizeor shape. The carrier referred to, at or near its pivotal point, hasco-operating with a it a suitable evener B shown as a spring,

which abuts against a shoulder carried by the presser rod 13, one end ofsaid spring being connected by a screw 30 to yoke B:

The presser rod B has fixed upon it in ad-I justablemanner a collar 15,having prefer more or less to place the presser plate in a positionninety degrees farther around than in thedrawings, for purposes to behereinafter movement of the projection 0 described.

The presser rod is normally kept elevated by a suitable spring B actingagainst the said collar and against a portion of the head.

The head has a suitable pivot C on which is mounted a presser lever 0having jointed to p it a red C suitably threaded at or near its lowerend to receive upon it an adjusting nut 0 the rod below said nut beingsurrounded by a spring 0 which is represented as restingon acollar Oloose on said rod, said carrier being acted upon by one arm of thetreadle lever C pivoted at 0 said arm also having in it a suitable holeto receive and guide the lower end of the rod C as represented by dottedlines in Fig. 1.

The main shaft D of the machine has fast upon it a brake wheel D, andthe fixed part D of a friction or clutch pulley with which co-operatesthe continuously running or movable part D of said clutch pulley, thesaid pulleys having preferably conical faces to afford the properfrictional engagement, in .usual manner.

acting normally to keep the said wedge down in the position shown inFig. 1, at which time the friction pulley will be nnclutched and the I from.

shaft at rest.

The rod'D has upon its threaded portiolr' an adjustable nut or collar Dthe change of position of which vertically, enables the lever The mainshaft is partially, surrounded between the brake pulley and, the loosepulley of the friction clutch with} a beveled fork D connected to avertically moving rod D the threaded lower end of which is alsoextended, see Fig. 1, through a hole in one arm of the treadle C", aspring D C to contact with the said collar sooner or later to thus givethe proper throw to the wedge D to thus insure the starting of the mainshaft at the proper instant of time.

The rod D or the part thereof below the wedge D has a brake-arm Dsuitably shaped, see Fig. 1, to engage aV- or equivalent shaped grooveat one side of the brake pulley, and stop the machine instantly when thetreadle is released to let the wedge D drop, as will be described.

The treadle C has a horn c forming one part of a locking device, theother part being a hook 0 attached to a rod (2 having suitable bearingsat c, the upper end of said rod having fast upon it an arm 0 againstwhich acts a lug or projection 0 carried by the downwardly extended hubE forming part of the bevel gear E, to be described, said projectionstriking a suitable projection on said arm 0 and causing the hook c tobe turned from its position Fig. 6 and release the lever (3 once duringeach rotation of the gear E, letting the said lever assume its startingposition, which will .be with the inner end of the treadle down. The rod0 is surrounded by a suitable spring 0 which is connected one end to thearm 0 and the other to the bearing 0 said spring normally acting to keepthe arm a pressed toward and in the path of The main shaftD has upon itsinnerend a bevel gear cl which engages the bevel gear E, it rotatingabout a fixed stud 01 the upwardly extended part of the hubE of saidbevel gear E having clamped upon it, in this present instance of myinvention, the split hub d of the arm (1 to be described, said hub beingconfined in position by a suitable screw (Z The hub of the gear E hasextended upwardly from it a stop-bar (1*, see the detail Fig. 7, saidstop-bar being also shown in Fig. 1, said stop-bar by contact with theunder side of thecam-plate F preventingthe rising of the gear E underthe strains to which it is subjected in the act of being rotated. Thepost (1 referred to, has at its upper end four positioning holes 3, 4,5, 6, and a tapped hole 7, the tapped hole receiving the bolt (1 whichserves to fix the cam plate F in its operative position. The cam platehas at its under side, see Fig. 4, registering pins 8, 9, which entereither of the pair of holes 3, 4, or the pair of holes 5, 6, accordingto whether the pattern plate is to stand lengthwise or crosswise withrelation to the frame of the machine, it standing crosswise, as in thedrawings, when the soles are to be shaped from blocks of leather, orstanding lengthwise, or ninety degrees farther around, when soles are tobe cut from strips of leather the width of which corresponds with or isa little wider than the length of the soles to be-cut there- Thecam-plate hasat its under side the groove f. The cam-plate receives andholds two likestuds 12, 13, upon which is mounted a pattern rest g uponwhich is laid 522,1ce' e and supported firmly the pattern plate g, the

upper ends of the studs 12, 13, entering holes in the said patternplate.

In Fig. 3 I have broken away the pattern plate and part of the patternrest below it to better show therbolt d hereinbefore referred to.

The arm d as best shown in Fig. 3, has a suitable guideway, as d, seeFig. 2, in which is fitted to slide the foot plate 7t upon which ispivoted at h, see Fig. 4., the carriage H provided with the roller orother studs h h which enter the groove f of the cam-plate, the saidroller or other studs being nearer the end of the carriage than thepivotal point thereof, such location of the roller studs with relationto the pivotal point of the carriage insuring, even with the fixedcam-plate, a steady uniform movement of the said carriage, and a uniformaction of its knife, to

be described, as the carriage is carried about the said cam plate withthe slide it in the groove of the arm d through the agency of l thegears d, E, the said carriage during this operation sliding backward andforwardythe plate 71. sliding in the groove of the arm (1 under thecontrol of a strong spring h fixed atone end to the carriage H and itsother end to an arm or lever h" pivoted upon the stud h erected on thecarriage H, the free end of said armor lever being herein represented asprovided with a hole to receive one end of a connecting rod h the otherend of which is joined to the block it which rises from the knife-bar hfitted to slide in suitable guideways in the upper portion of thecarriage, H. The block 71 is provided with a suitable hole to receivethe shank k see Fig. 3, of the knife carrier 77, provided with a knife71 the said knife-carrier and knife being represented best in Fig. 3,the hole, seeFig. 1 receiving a steel bushing 5 By the employment of aspring such as 71 ,10- cated at a distance from the knife,'andinterposing between the said spring, an arm and connecting mechanism, asufficient range of movement is given to the knife bar it so that it mayfollow the pattern plate, of whatever size'used, it being understoodthat one pattern plate may be removed and another substituted for it ofa different size and shape as required.

. WVhen a pattern plate is to be changed the operator will engage thehandle m pivoted at m to a portion of the carriage H, as shown best inFigs. 4: and 5, and will turn said handle in the direction of the arrowthereon until the slotted portion m jointed to a portion of the saidhandle at m meets a pin m connected to the knife-bar, when thereafterthe knife-bar will be drawn back away from the pattern plate.

In practice I provide a suitable spring as m to actupon the handle andhold it in its normal position shown in said figures.

If. it is desired to cut soles from a strip as stated, the operatorwill, as stated, release ure.

the screw 13 and turn the presser rod B about for ninety degrees, andwill then release the bolt, d lift the cam-plate F from the top of thepost d and turn the cam plate around for ninety degrees and secure it inthat position as before by the bolt d In order that the knife may bemade to commence to cut the leather at any desired point with relationto the pattern plate, the operator will release the screw d and turn thesplit hub 01 of the arm d about the hub E. In practice the knife isusually made to stop at or about the junction of the ball of the heel,or at the point marked n see Fig. 3, rather than in the position shownas occupied by the knife in said fig- Assuming that the knife is inproper starting position and the machine at rest, the operator will puthis foot upon the treadle, depress its outer end and in so doing thetreadle will first act upon the collar 0 and through the spring G willcause the lever O to depress the presser bar 13 and cause the presserplate 13 to descend upon theblank of leather 3 previously laid upon thepattern plate, the further depression of the lever causing its rear endto meet the collar D elevate the wedge D and force the clutch pulleyparts in contact so that themain shaft will be started. The main shaftin its movement will revolve the gear E inthe direction of .the arrowupon it. When the knife starts from the position designated by n, theprojection 0 will stand about in the position designated by the dottedlines n, Fig. 6, and

when the said projection in its rotation in the direction of the arrownear the hub E meets the projection 30 of the arm 0 the looking device 0will be turned to release the treadle C, as before described, lettingthe springs 0 B actingin conjunction, lower the rear end of the treadle.

I have aimed to produce a practical sole rounding machine with thefewest possible parts and with the simplest possible mechanism, tothereby produce a durable, efficient, and easily adjusted machine, andwhile I have specifically described the various parts, this invention isnot to be limited to the construction of the mechanism shown, as it willbe obvious to those familiar with the art that modifications in form andshape might be made, calling only for usual mechanical skill, withoutdeparting from my invention. By the employmentof the tubular steelbushing .9 in the block it, which bushing receives the knife shank h theblock is not worn and a bushing when worn may be readily removed and 'anew bushing substituted for it. It is quite essential that the shank ofthe blade be ICC in the knife shank prevents verticalmovement of theknife. 7

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. Asole rounding machine containing the following instrumentalities,viz:-a stationary pattern plate upon which the leather to be cut is heldfixedly; a stationary cam plate having a cam groove; a rotatable arm asd having a guideway; a bar adapted to slide therein longitudinally; acarriage pivoted to said bar and provided with roller or other studs toenter the groove of the said cam plate; a knife bar fitted to slide inguideways connected with said carriage; a knife holder carried by saidknife bar; means to keep the said knife-holder pressed up to the saidpattern plate and yet adapt it to follow the contour of the patternplate of whatever form; and means to rotate said arm and move saidcarriage with the said knife about the pattern plate, substantially asdescribed.

2. In a sole rounding machine, the following instrumentalities, viz:astationary pattern plate; a stationary cam-plate provided with agroove;apivoted carriage having roller or other studs to enter the grooves ofthe cam plate and provided with a guideway at its upper side; aknife-bar mounted to slide in said guideway; a knife holder and. knifepivotally mounted in said bar; and a lever and link cooperating withsaid knife-bar; combined with a spring as 72/5 whereby great latitude ofhorizontal movement is permitted to said knifebar with relation to thelongitudinal center of the cam-plate whereby said spring, lever, andconnections adapt the knife to co-operate with pattern plates ofdifferent sizes, the carriage being under the control of one and thesame stationary cam, substantially as described.

3. In a sole rounding machine, the gear E having a hub E; a post tosupport said gear hub; combined with an arm as d the hub of whichsurrounds and is clamped adj ustably upon the hub of the gear, said armforming a support for the knife carriage, the adj ustment of the saidarm about said hub when not clamped thereto enabling the position of thecarriage to be adjusted with relation to the pattern plate,substantially as described.

4:. In a sole rounding machine, a stationary pattern plate, a presserbar, and a carrier pivoted thereon, combined with a detachable presserplate, and a locking device therefor, to operate substantially asdescribed.

5. The stationary pattern plate of a sole rounding machine; thepresser-bar, and a yoke-shaped carrier pivoted thereon; and itsconnected presser plate; combined with the evener spring to adapt thepresser plate to a projection; devices actuated by said gear to carrythe said knife-bar once around said pattern plate; a presser bar havinga suitable presser plate; a spring to normally elevate the presser-bar;the main shaft of the machine; a clutch-pulley mounted thereon; means toeffect the engagement of said clutch pulleys to start the said mainshaft, said means having a collar D a treadle under the control of thefoot of the operator; devices intermediate said treadle and saidpresser-bar to depress the latter; a locking device co-operating with apart of said treadle; and a gear connected with said main shaft torotate the gear E, whereby when the operator actuates the treadle thepresser-bar is first depressed to clamp the leather between itself andthe pattern plate, and the clutch pulleys are thereafter engaged toeffect the rotation of the main shaft, and the said treadle is locked inposition by the locking device until the main shaft has rotated the gearE once, when the projection movable with said gear effects the unlockingof the treadle and the stopping of the machine, substantially asdescribed.

7. In a sole rounding machine, the gear E having its hub provided with aprojection 41"; an arm (1 connected with a portion of the hub of saidgear and forming a support for a carriage containing a knife-bar androunding knife; a pattern plate to sustain the material to be out; apresser plate to rest on said material; its carrying bar and elevatingspring, combined with a treadle having a locking projection c, a leverto act on said bar, a rod connected to said lever and extended to saidtreadle, a spring interposed between said treadle and rod, and with alocking device intermediate said gear and said projection whereby as thesaid gear completes a rotation, the locking device is turned to effectthe release of the treadle, and enable the presser bar and plate to beautomatically lifted, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JAMES N. MOULTON.

Witnesses:

GEO. W. GREGORY, M. J. SHERIDAN.

IIO

